Did Paul VI ACTUALLY approve contraceptive use?

Thanks to Fr. Z for doing this legwork.  Click here to read his article.  Spoiler alert - the answer is no, he did not

http://wdtprs.com/blog/2016/02/its-not-an-urban-legend-its-a-lie-paul-vi-did-not-give-permission-to-nuns-to-use-contraceptives/